CameraIcon

SearchIcon

MyQuestionIcon

2

You visited us 2 times! Enjoying our articles? Unlock Full Access!

Coupling

If you made a...

Question

If you made a map of magnetic field lines at Melbourne in Australia, then the magnetic field lines seem to be

A

go into the ground

No worries! We‘ve got your back. Try BYJU‘S free classes today!

B

come out of the ground

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

C

maintain a spiral path on the surface of earth

No worries! We‘ve got your back. Try BYJU‘S free classes today!

D

move on helical path above the surface of ground

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is C come out of the ground
As Melbourne is situated in southern hemisphere where north pole of earth's magnetic field lies therefore magnetic lines of force seem to come out of the ground.

Suggest Corrections

thumbs-up

0

Similar questions

Q. Answer the following questions regarding earth's magnetism:

(a) A vector needs three quantities for its specification. Name the three independent quantities conventionally used to specify the earth's magnetic field.

(b) The angle of dip at a location in southern India is about

18^{o}

. Would you expect a greater or smaller dip angle in Britain?

(c) If you made a map of magnetic field lines at Melbourne in Australia, would the lines seem to go into the ground or come out of the ground?

(d) In which direction would a compass free to move in the vertical plane point to, if located right on the geomagnetic north or south pole?

(e) The earth's field, it is claimed, roughly approximates the field due to a dipole of magnetic moment

8 \times 10^{22} J T^{- 1}

located at its centre. Check the order of magnitude of this number in some way.

(f) Geologists claim that besides the main magnetic N-S poles, there are several local poles on the earth's surface oriented in different directions. How is such a thing possible at all?

Q. A proton enters a uniform magnetic field with a path perpendicular to the field lines and moves in a circular path of radius

R

. An electron enters the same magnetic field at the same speed in a path perpendicular to the field.
Compared to the protons path, the radius of the electrons circular path is:

Q. What is the time rate of work done by the magnetic field on a test charge, when it follows as helical path?

Q. A charged particle enters into a uniform magnetic field with velocity vector at an angle of

45^{o}

with the magnetic field. The pitch of the helical path followed by the particle is

p

. The radius of the helix will be

Q. An electron enters a uniform magnetic field with a path perpendicular to the field lines and moves in a circular path of radius

R

.
A positron (same mass of an electron but opposite charge) enters the same magnetic field in a path perpendicular to the field with four times the kinetic energy.
Compared to the electrons path, the radius of the protons circular path is:

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Self and Mutual Inductance

PHYSICS

Watch in App

explore_more_icon

Explore more

Standard XII Physics

Join BYJU'S Learning Program

CrossIcon